This report describes simulations and field tests performed with the two digital processing systems, DP1 and DP2, which were built on the Digital Guided Weapons Technology Program. The DP1 system was integrated with a GFE Inertial Measurement Unit (IMU); and, after testing at Hughes Aircraft Company, it was integrated with the Completely Integrated Reference Instrumentation System (CIRIS) at the central Inertial Guidance Test Facility (CIGTF), Holloman Air Force Base, New ...